EP 1638242 A2 20060322 - OFDM-CDMA transmission apparatus and corresponding method
Title (en)
OFDM-CDMA transmission apparatus and corresponding method
Title (de)
OFDM-CDMA Sendegerät und entsprechendes Verfahren
Title (fr)
Dispositif d'émission OFDM-CDMA et procédé correspondant
Publication
Application
Priority
- EP 00114855 A 20000711
- JP 19894399 A 19990713
Abstract (en)
An OFDM-CDMA transmission apparatus comprising: a first spreader (101) for carrying out spreading processing on a plurality of transmission signals using mutually different spreading codes; a second spreader (102) for carrying out spreading processing on a known signal at a predetermined spreading factor using a spreading code different from said spreading codes; a frequency division multiplexer (104, 105) for breaking down the known signal subjected to spreading processing by the second spreader into a plurality of chips, frequency division multiplexing said chips, and allocating the frequency division multiplexed chips to the same number of subcarriers as the spreading factor arranged in a frequency axis direction, and frequency division multiplexing said plurality of transmission signals subjected to spreading processing by the first spreader and allocating the frequency division multiplexed transmission signals to said subcarriers; and a transmitter (106) for transmitting simultaneously the chips and the transmission signals frequency division multiplexed and allocated to the subcarriers by the frequency division multiplexer and a method to operate the transmission apparatus.
IPC 8 full level
H04J 11/00 (2006.01); H04L 5/02 (2006.01); H04B 1/707 (2011.01); H04L 27/26 (2006.01)
CPC (source: EP KR US)
H04B 1/707 (2013.01 - KR); H04J 11/00 (2013.01 - KR); H04L 5/0044 (2013.01 - EP US); H04L 5/0048 (2013.01 - EP US); H04L 27/2627 (2013.01 - EP US); H04L 27/266 (2013.01 - EP US); H04L 27/2675 (2013.01 - EP US); H04L 5/0017 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 1069725 A2 20010117; EP 1069725 A3 20040107; EP 1069725 B1 20060222; CN 1159872 C 20040728; CN 1280427 A 20010117; DE 60026094 D1 20060427; DE 60026094 T2 20060810; EP 1638242 A2 20060322; EP 1638242 A3 20060329; JP 2001028557 A 20010130; JP 3715141 B2 20051109; KR 100381514 B1 20030423; KR 20010015294 A 20010226; US 7161895 B1 20070109
DOCDB simple family (application)
EP 00114855 A 20000711; CN 00124025 A 20000713; DE 60026094 T 20000711; EP 05027646 A 20000711; JP 19894399 A 19990713; KR 20000039811 A 20000712; US 61352700 A 20000710